... aluminum fin Manifold Copper flow passage, rockwool/PU insulation, Aluminium alloy Pressurized Water Tank Capacity 100 ~ 500L for inner ... PVDF Bracket Spec.(mm) 1.8 ~ 2.0mm Material Aluminium alloy plate Accessories Workstation system, Electric heater, E-Parts box, thermostat, ... long lifespan (15 years)2) Tank shell: Color steel plate as exterior shell, much durable and appealing. Stainless steel ...